NEET Important Questions Principle of Inheritance and Variation
FAQs on NEET Principle of Inheritance and Variation Important Questions
1. What are the topics covered under The Principles of Inheritance and Variations?
The topics covered under The Principles of Inheritance and Variations are-
Mendel's Laws of Inheritance
Incomplete Dominance
Chromosomal Theory of Inheritance
Sex Determination
Mutation and Chromosomal disorders
Genetic-Disorders
Linkage and recombination
Chromosomes are thread-like structures present within the nucleus of a cell. Human Beings have 23 pairs of chromosomes. Carl Wilhelm von Nageli was a swiss botanist who discovered chromosomes while conducting an experiment on his pea plant.
3. What determines the Sex of a baby?
The sex of the baby is determined by the sperm. So, the father is the determining factor in the sex of the baby as male have one X and one Y chromosome whereas the female has two X chromosomes. X X makes a female baby and XY makes a male baby.
4. What is meant by Mutation?
Mutation is an alteration in the DNA, and these mutations are results of errors in DNA or copying mistakes during cell division. Mutations can cause harmful diseases but not all mutations are harmful.
5. What is meant by Linkage and Recombination?
Linkage happens when co-inheritance between two DNA are close to each other. Recombination is the condition by which they become separated during crossing over.